Home / 6,689.12-9,231.01-3,705.01

Finding the Fourth Proportional to 6,689.12, 9,231.01 and 3,705.01

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Solution

The fourth proportional to 6,689.12, 9,231.01 and 3,705.01 is: 5,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.12 : 9,231.01 = 3,705.01 : x
  2. Step 2: Convert to fraction form
    6,689.12/9,231.01 = 3,705.01/x
  3. Step 3: Cross multiply
    6,689.12x = 9,231.01 × 3,705.01
  4. Step 4: Simplify right side
    6,689.12x = 34,200,952.02
  5. Step 5: Solve for x
    x = 34,200,952.02/6,689.12
  6. Step 6: Final answer
    x = 5,112.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.